body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}

a {
  color: #00B7FF;
}
.box{
  color: #000;
}
.red{
  background-color:rgba(255,0,255,0.3);
}
.lg{
  width:300px;
  height:300px;
}